Sunday, June 2, 2013

Inferential Practice Problem 1&2

Data for Practice Problems precedent Test Scores summon Gender Absences PE math Writing ReadingAlex son 5 49 85 86 80Anthony son 18 51 39 71 75Douglas son 1 82 74 78 79Jorge boy 4 56 66 68 60Joshua son 5 83 79 78 77Luke Boy 0 94 89 84 84Robert Boy 17 36 36 56 50Rupert Boy 4 24 55 56 52Seth Boy 0 61 92 89 83Wayne Boy 1 65 92 96 91Blair little girl 3 94 59 66 90Brooke female child 2 75 35 43 46Carmen misfire 0 49 91 91 90Charlita misfire 16 23 49 55 49Kim Girl 2 71 90 92 95Li Girl 1 73 98 93 95Rachel Girl 2 92 87 92 91Sara Girl 3 33 87 93 94Sheetal Girl 0 18 carbon 97 97Tawayna Girl 14 31 65 55 63 Problem 1a ) Name Nominal scaleGender Ordinal scaleAbsences ratio scalePhysical tuition (PE ) ratio scaleMath Ratio scaleWriting Ratio scaleReading Ratio scaleb ) The Pie Chart represents the crop of students in class with celebrate to their genderc ) Determinig Co-relation between VariablesAbsences PEAbsences (x )PE (y )xy x2 y25 49 245 25 240118 51 918 324 26011 82 82 1 67244 56 224 16 31365 83 415 25 68890 94 0 0 883617 36 612 289 12964 24 96 16 5760 61 0 0 37211 65 65 1 42253 94 282 9 88362 75 150 4 56250 49 0 0 240116 23 368 256 5292 71 142 4 50411 73 73 1 53292 92 184 4 84643 33 99 9 10890 18 0 0 32414 31 434 196 96198 1160 4389 1180 79004Sxx 1180 - (98 )2 / 20 699 .
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8Sxy 4389 - (98 x 1160 / 20 -1295Syy 79004 - (1160 )2 / 20 78888r Sxy (Sxx x Syy )0 .5 -1295 (699 .8 x 7888 )0 .5 - 0 .551503Math PEPE (x )Maths (y )xy x2 y249 85 4165 2401 722551 39 1989 2601 152182 74 6068 6724 547656 66 3696 3136 435683 79 6557 6889 624194 89 8366 8836 792136 36 1296 1296 129624 55 1320 576 302561 92 5612 3721 846465 92 5980 4225 846494 59 5546 8836 348175 35 2625 5625 122549 91 4459 2401 828123 49 1127 529 240171 90 6390 5041 810073 98 7154 5329 960492 87 8004 8464 756933 87 2871 1089 756918 100 1800 324 1000031 65 2015 961 42251160 1468 87040 79004 116444 Syy 116444 - (1468 )2 / 20 116297 .2Sxy 87040 - (1468 x 1160 / 20 1896Sxx 79004 - (1160 )2 / 20 78888r Sxy (Sxx x Syy )0 .5 1896 (116297...If you loss to take out a full essay, cabaret it on our website: Ordercustompaper.com

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